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Example: A worker lifts 10 kg boxes from the conveyor to the cart ten times every minute for two-hours.
To calculate the recommended weight limit (RWL) for the task:
Weight - 10 kg
H (Horizontal Distance - 20 cm
V (Vertical Distance) - 75 cm
D (Lifting/ carrying Distance) - 0 cm
F (Frequency) - 6 sec
A (Angle) - 90°
C (Coupling/quality of grip) - fair
23 kg x 1.00 x 0.93 x 1.00 x 0.13 x 0.71 x 0.95 = 1.86 kg
The weight of the load at 10 kg is higher than the calculated recommended weight limit of 1.86 kg.
Therefore, TASK IS DANGEROUS.
23 kg x 1.00 x 0.93 x 1.00 x 0.75 x 0.71 x 0.95 = 10.82 kg
The weight of the load at 10 kg is now lower than the weight limit calculated to be 10.82 kg.
Therefore, MOST WORKERS CAN SAFELY PERFORM THE TASK.